use rand::Rng;
use std::cmp::Ordering;
use std::io;
use std::{thread, time};
use std::fs;
use std::fmt;

use crate::enums_args::enumsArgs;
use crate::if_let::ifLet;
use crate::match_study::matchStudy;
use crate::option_::option_method;
use crate::simple::simpleFn;


// 另一个模块的引用
mod simple;
mod enums_args;
mod option_;
mod match_study;
mod if_let;


fn main() {
    simpleFn();

    enumsArgs();

    option_method();

    // match 控制流结构
    matchStudy();

    ifLet();

}